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1/4IN CLASS AP-2 — Technical Data Sheet

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— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

VALVE,REGULATING,FLUID PRESSURE. Key specifications include filter: INCLUDED, material: STEEL STEM, body_style: STRAIGHT THRU, temp_rating: 150.0 FAHRENHEIT MAXIMUM DEGF, regulation_type: AUTOMATIC SINGLE STAGE, flow_control_device: DIAPHRAGM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-435-4258, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1/4IN CLASS AP-2
NSN: 4820-01-435-4258
FSC: 4820
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
filterINCLUDED
materialSTEEL STEM
body_styleSTRAIGHT THRU
temp_rating150.0 FAHRENHEIT MAXIMUM DEGF
regulation_typeAUTOMATIC SINGLE STAGE
flow_control_deviceDIAPHRAGM
valve_loading_methodSPRING
manual_control_methodSCREW
end_connection_quantity2
end_item_identificationUSED ON THE MARS CLASS AFS
first_end_connection_typeUNTHREADED INTERNAL TUBE
first_end_style_designatorPLAIN
NSN4820-01-435-4258
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1/4IN CLASS AP-2 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: RUBBER SYNTHETIC FLOW CONTROL DEVICE
•
BODY STYLE: STRAIGHT THRU
•
MAXIMUM INLET PRESSURE RATING: ERR-060
•
MANUAL CONTROL METHOD: SCREW
•
TEMP RATING: 150.0 FAHRENHEIT MAXIMUM DEGF
•
FLOW CONTROL DEVICE: DIAPHRAGM
•
REGULATION TYPE: AUTOMATIC SINGLE STAGE
•
END CONNECTION QUANTITY: 2
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC FLOW CONTROL DEVICE
BODY STYLESTRAIGHT THRU
MAXIMUM INLET PRESSURE RATINGERR-060
MANUAL CONTROL METHODSCREW
TEMP RATING150.0 FAHRENHEIT MAXIMUM DEGF
FLOW CONTROL DEVICEDIAPHRAGM
REGULATION TYPEAUTOMATIC SINGLE STAGE
END CONNECTION QUANTITY2
VALVE LOADING METHODSPRING
MATERIALALUMINUM AND BRONZE SEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
BPV21Interchangeable
interchangeable cross-reference
interchangeable
AP-2Interchangeable
interchangeable cross-reference
interchangeable
1469Interchangeable
interchangeable cross-reference
interchangeable
A4109Interchangeable
interchangeable cross-reference
interchangeable
114300-6Interchangeable
interchangeable cross-reference
interchangeable
409686Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1/4IN CLASS AP-2?
1/4IN CLASS AP-2 is a VALVE,REGULATING,FLUID PRESSURE.
What parts can replace 1/4IN CLASS AP-2?
There are 13 known substitutes for 1/4IN CLASS AP-2: BPV21, AP-2, 1469 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1/4IN CLASS AP-2?
1/4IN CLASS AP-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-435-4258. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026